The working principle and composing of two kinds of the actuators are introduced,and then based onthese, the models are built to study the performance of the actuators.The simulation analysis focuses on the dynamic performances of hybrid actuation system with dissimilar redundancies worked in different modes.There are fighting forces in the hybrid system, which is dissimilar redundant.The paper proposes mean equalization technology torelieve the fighting force, and the simulation results in AMESim show that the method is effective.